Connectivity and Features
In terms of connectivity, the D840 embraces basic GSM/GPRS/EDGE support, reflective of its time, but lacks more advanced connectivity options like 3G or Wi-Fi. Bluetooth 1.2 and USB 1.1 are included for device pairing and data transfer, supporting functionalities such as A2DP for audio streaming. Notably absent are features like positioning services and an integrated FM radio, which became more commonplace in later phones.